| 摘要 |
An upright style built-in dual frequency antenna comprising an electric circuit board of a microstrip antenna, wherein, a microstrip of a small width in the form of continuous waves connected on the two ends thereof to two horizontal microstrips of larger widths together forming the microstrip antenna is printed on one side of the electric circuit board, the electric circuit board of microstrip antenna is installed upright in the top portion of communication equipment, an elastic metallic connecting member is connected with an antenna circuit of a main board of a communication device and with one of the horizontal microstrips of a larger width; a printing surface of the electric circuit board of the microstrip antenna faces to the top of the communication device without impediment of any metallic member. Thereby, it can get an ideal signal emitting and receiving performance with such a hidden structure.
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